Linear Coherent Receiver based on a Broadband and Sampling Optical Phase-Locked Loop

Bowers, John E.; Ramaswamy, Anand; Johansson, Leif; Klamkin, Jonathan; Sysak, M.N.; Zibar, Darko; Coldren, L.A.; Rodwell, M.J.W.; Lembo, Lawrence J.; Yoshimitsu, R.; Scott, D.; Davis, Richard L.; Ly, Peter Q. C.

doi:10.1109/mwp.2007.4378179

Cited by 20 publications

(4 citation statements)

References 9 publications

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“…As a solution, we have proposed a coherent phase modulated RF/photonic link shown in Fig. 1 [1][2]. The most critical element in this link is an Optical Phase-Locked Loop (OPLL) linear phase demodulator.…”

Section: Introductionmentioning

confidence: 99%

All-optical ACP-OPLL photonic integrated circuit

Bhardwaj

Wang

et al. 2011

2011 IEEE MTT-S International Microwave Symposium

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The optical-phase-locked-loop linear phase demodulator is the most critical component for a high dynamic range phase modulated RF/Photonic link. Due to the stringent loop latency requirement, the OPLL should be implemented as a photonic integrated circuit. In this paper we address the design and implementation of an all optical attenuation-counterpropagating (ACP) optical-phase-locked-loop photonic integrated circuit. The preliminary experimental results for this device are also presented.Index Terms -Optical phase locked loop, photonic integrated circuits, dynamic range.

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Section: Introductionmentioning

confidence: 99%

All-optical ACP-OPLL photonic integrated circuit

Bhardwaj

Wang

et al. 2011

2011 IEEE MTT-S International Microwave Symposium

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“…However, existing microwave fiber-optic links that employ optical intensity modulation have inadequate spurious free dynamic range (SFDR) due to the nonlinear distortion incurred in the optical modulation processes [1][2]. Recently, there are increasing efforts in developing a truly linear phase modulated (PM) fiber optic link employing an optical phase locked loop (OPLL) [3][4] phase demodulator. This PM optical link aims to achieve over 140dB·Hz 2/3 dynamic range, thus significantly surpassing the-state-of-theart.…”

Section: Introductionmentioning

confidence: 99%

RF frequency down-conversion with quadratic electro-optic effect

Wang

Herczfeld

et al. 2009

2009 IEEE MTT-S International Microwave Symposium Digest

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The frequency down-converter is an essential element of a photonic radar frontend. In this paper we describe a new photonic frequency down-conversion approach employing a quadratic optical phase modulator. When paired with an OPLL linear phase demodulator, this approach can potentially achieve a large dynamic range and a low conversion loss. A preliminary experiment has been performed to verify frequency downconversion with an InP MQW optical phase modulator. It has been found that the unwanted 4 order electro-optic effect that exists in phase modulator results in spurious distortion for the down-converted RF signal. The techniques for mitigation are discussed. th Index Terms -Frequency conversion, quadratic electro-optic effect, optical phase locked loop.

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“…PM/FM can be detected using specially-fabricated FBGs [9], where the performance becomes defined by the fabrication of the gratings. Finally, PM can be detected using an optical phase-locked loop (OPPL) [10]. Under conditions of high loop gain, high linearity is achievable as the OPPL tracks the PM on the received optical signal.…”

Section: Introductionmentioning

confidence: 99%

Analysis of a Class-B Microwave-Photonic Link Using Optical Frequency Modulation

Driessen

Darcie

Zhang

2008

J. Lightwave Technol.

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Abstract-A class-B microwave-photonic link using optical frequency modulation (FM) and fiber-Bragg gratings (FBGs) is analyzed and results verified with measurements. Input voltage is converted linearly to FM, and this FM is converted by each FBG to intensity modulation. For small FM index , the signal increases as 3 , becoming linear in with a frequency offset or carrier leakage, and third-order distortion resulting from the detection process is shown to be worse than that obtained using a Mach-Zehnder intensity modulator at the same modulation index. For large ( 10), third-order distortion approaches zero and ideal class-B operation is predicted, and the only shot noise and relative intensity noise (RIN) added is that which arises from the detected signal power.Index Terms-Class B, microwave-photonic link (MPL), optical frequency modulation (FM), optical link, radio over fiber, spur-free dynamic range.

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Linear Coherent Receiver based on a Broadband and Sampling Optical Phase-Locked Loop

Cited by 20 publications

References 9 publications

All-optical ACP-OPLL photonic integrated circuit

All-optical ACP-OPLL photonic integrated circuit

RF frequency down-conversion with quadratic electro-optic effect

Analysis of a Class-B Microwave-Photonic Link Using Optical Frequency Modulation

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